what does the regional continuity model of modern homo sapiens origins propose?
What will be an ideal response?
all of the above
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In 2008, people from which world region constituted most of the United States’ foreign-born population?
a. Asia b. Middle East c. Africa d. Latin America and Caribbean
According to Fredrik Barth's theories about ethnic identity, ethnic boundaries are most stable when
A. ethnic groups are culturally very similar and tend to pursue the same goals. B. ethnic groups share a common ancestor. C. ethnic groups occupy different ecological niches. D. the members of the ethnic groups are highly educated, as in postcolonial states. E. ethnic groups share the same nation-state.
How do the basic principles of inheritance, identified by Mendel in plants, differ from those in humans?
a. ?There are no differences since the basic principles are the same. b. ?They are simpler. c. ?Plants don't have alleles. d. ?There are no Mendelian traits in humans. e. ?The number of chromosomes is different? therefore, genetic principles vary.
Heavy wear on Neandertals' incisor teeth has led some scientists to conclude that Neandertals used their front teeth:
a. as a kind of third hand for gripping materials. b. for hunting and killing small animals. c. for shaping the cutting edges of stone blades. d. for gouging trees to extract sap.